The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-108-2161, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Norgren C a Co. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-108-2161 |
| Primary Part Number | 18-013-221 |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Norgren C a Co |
| Status | ACTIVE |
| Scale Accuracy | 2 PCT MIDDLE 3RD; 3 PCT REMAINDER OF RANGE |
| Scale Name | PRESSURE |
| Overall Diameter | 2.500 INCHES NOMINAL IN |
| Actuation Type | BOURDON TUBE |
| Scale Inscription/background Color | BLACK FIGURES,WHITE BACKGROUND |
| Scale Smallest Increment | 2.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 60.0 INCHES OF WATER PRESSURE IN |
| Pointer Type | INDICATING |
| Adjustability | NONADJUSTABLE |
| Scale Type | SINGLE |
| Connector Type Vent | NOT PROVIDED |
| Graduation Unit | 10.0 POUNDS PER SQUARE INCH LBS |
| Connection Location | BACK, CENTER |
| Pointer Color | BLACK |
| Material | STEEL CASE |
| Connection Quantity | 1 |
| Connection Size | 0.250 IN. NPT DIA IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 18-013-221 PRIMARY | Norgren C a Co (USA) |
| Reference | Meaning |
|---|---|
| 17822-1 | 5/9 Secondary reference U.S. Government activity |
| 17822 | 7/9 Vendor item drawing reference U.S. Government activity |
| 17822 | 5/2 Secondary reference U.S. Government activity |
| 17822 | 5/9 Secondary reference Drs Environmental Systems Inc |
NSN 6685-01-108-2161 is a Gage,pressure,dial Indicating, manufactured by Norgren C a Co, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-108-2161 has 1 manufacturer part number on file: 18-013-221 (Norgren C a Co).
3 possible matches (shared part number, not a government interchangeability claim): 5935-01-199-7113, 5315-01-395-7809, 7240-01-584-5836. Verify interchangeability with system specifications before substitution.
Key specifications for 18-013-221: Scale Accuracy: 2 PCT MIDDLE 3RD; 3 PCT REMAINDER OF RANGE; Scale Name: PRESSURE; Overall Diameter: 2.500 INCHES NOMINAL IN; Actuation Type: BOURDON TUBE. 18 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.